What does panthenol do in skincare?

How does panthenol moisturize skin?

Panthenol is a provitamin: skin converts it into vitamin B5, also called pantothenic acid. It works as both a humectant, which attracts water to the skin's upper layer, and an emollient, which smooths and softens dry patches. That makes it useful for skin prone to dryness or roughness. You can find panthenol in moisturizers and serums, so adding it does not necessarily mean adding another step. A separate vitamin B5 serum is usually unnecessary, which is one less bottle auditioning for space beside the sink.1

What does it do for the skin barrier?

The skin barrier is the outer protective layer that limits water loss and keeps irritants and allergens from entering deeper skin. Dexpanthenol supports this barrier by helping skin produce lipids, the fats between skin cells, and supporting the development of those cells. In dry skin, dexpanthenol increases water content and helps the outer layer function better. Its benefits go beyond making the surface feel smooth: hydration and barrier support are linked, because a weakened barrier lets more water escape.23

How should you use panthenol?

Look for panthenol within a moisturizing formula rather than treating it as a required standalone treatment. Humectants and emollients work best alongside occlusives, ingredients that reduce moisture loss, such as petrolatum or mineral oil. Choose the complete moisturizer rather than shopping by the biggest ingredient name on the front, because the front of the bottle is not the whole formula. Panthenol combines well with other skincare ingredients, so check whether your existing moisturizer already contains it before buying another product.1

For eczema prone skin, dexpanthenol is one useful moisturizer ingredient alongside ceramides, humectants and occlusives. Apply moisturizer soon after bathing to help keep the outer layer hydrated. Moisturizing supports eczema care, but some people also need medicines to control inflammation or treat infection.3

Does panthenol help damaged skin heal?

Topical dexpanthenol supports healing of superficial wounds, including damage after procedures such as ablative laser treatment. Clinical research has found faster rebuilding of the skin's surface and restoration of barrier function after injury. Everyday moisturizing and wound aftercare are different uses: care for an injury depends on its depth, location and characteristics, rather than simply whether a skincare product contains panthenol.2